// Copyright 2023 Matrix Origin
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package colexec

import (
	"context"
	"github.com/matrixorigin/matrixone/pkg/common/bitmap"
)

func ReceiveBitmapFromChannel(usr context.Context, ch chan *bitmap.Bitmap) *bitmap.Bitmap {
	select {
	case <-usr.Done():
		return nil
	case bm, ok := <-ch:
		if !ok {
			return nil
		}
		return bm
	}
}
